Bug 1557185 - part3 : enable wpt 'too_many_cues.html' and 'too_many_cues_wrapped.html'. r=heycam

Differential Revision: https://phabricator.services.mozilla.com/D34035

--HG--
extra : moz-landing-system : lando

testing/web-platform/meta/webvtt/rendering/cues-with-video/processing-model/too_many_cues.html.ini

@@ -1,3 +1,4 @@
 [too_many_cues.html]
-  expected:
+  disabled:
-    FAIL
+    if (os == "android"): https://bugzilla.mozilla.org/show_bug.cgi?id=1536762
+  fuzzy: too_many_cues-ref.html:maxDifference=0-2;totalPixels=0-12200

testing/web-platform/meta/webvtt/rendering/cues-with-video/processing-model/too_many_cues_wrapped.html.ini

@@ -1,2 +1,4 @@
 [too_many_cues_wrapped.html]
-  expected: FAIL
+  disabled:
+    if (os == "android"): https://bugzilla.mozilla.org/show_bug.cgi?id=1536762
+  fuzzy: too_many_cues_wrapped-ref.html:maxDifference=0-2;totalPixels=0-12200